TY - JOUR AU - T. Ayano AU - V. M. Buchstaber TI - Analytical and number-theoretical properties of the two-dimensional sigma function JO - Čebyševskij sbornik PY - 2020 SP - 9 EP - 50 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2020_21_1_a2/ LA - en ID - CHEB_2020_21_1_a2 ER -